QSA_New_V4 Exam Dumps : Qualified Security Assessor V4 Exam

 Requirement for Secure Transmission:

PCI DSS Requirement 4.1 mandates that cardholder data sent over open public networks must be protected with strong cryptographic protocols. Accepting only trusted keys ensures data integrity and prevents unauthorized access​​.

 Key Validation Practices:

Trusted keys and certificates are verified to ensure authenticity. Using untrusted keys compromises the security of the encrypted communication.

 Prohibited Practices:

A/D:Configuring protocols to accept all certificates or lower encryption strength violates PCI DSS encryption guidelines.

B:Proprietary protocols are not inherently compliant unless they meet strong cryptographic standards.

 Testing and Verification:

Assessors verify the implementation of trusted keys by examining encryption settings, reviewing certificate chains, and conducting tests to confirm only trusted connections are accepted​​.

Formulti-tenant service providers,isolation and segmentationare critical. As perRequirement 12.10.3, each customer’s environment must besegregated and protectedsuch that no tenant can access another’s data or systems.

Option A:✅Correct. This is the foundational control —isolation of customer environments.

Option B:❌Incorrect. Exposing system config files is a security risk.

Option C:❌Incorrect. Shared user IDs areexplicitly prohibitedby Requirement 8.2.1.

Option D:❌Incorrect. Customers should only access their own logs.

Thesettlement phaseis when:

Themerchant’s acquiring bank pays the merchant, and

Theissuing bank bills the cardholder.

This occursafter authorization and clearinghave already taken place.

Option A:❌Incorrect. Authorization verifies the card and funds but doesn’t trigger payment.

Option B:❌Incorrect. Clearing exchanges transaction details between banks but doesn’t finalise funds.

Option C:✅Correct. Settlement is whenfunds are actually transferred.

Option D:❌Incorrect. Chargebacks reverse transactions, not settle them.